CN218896219U - Waterproof optical fiber plug - Google Patents
Waterproof optical fiber plug Download PDFInfo
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- CN218896219U CN218896219U CN202223459263.8U CN202223459263U CN218896219U CN 218896219 U CN218896219 U CN 218896219U CN 202223459263 U CN202223459263 U CN 202223459263U CN 218896219 U CN218896219 U CN 218896219U
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Abstract
The utility model discloses a waterproof optical fiber plug, which comprises a connector assembly and a waterproof assembly, wherein the connector assembly comprises a core insert, a connector and a connector sealing ring, one end of the core insert is provided with a ceramic core insert, the other end of the core insert is provided with a tail sleeve, the connector is arranged near the middle part of the core insert, and the connector sealing ring is arranged between the end of the ceramic core insert on the core insert and the connector; the waterproof assembly comprises an inner sleeve and a waterproof sealing ring, the inner sleeve is provided with an inner cavity for accommodating the ceramic ferrule of the ferrule assembly, the inner wall is suitable for abutting against the sealing ring of the connector, one end of the inner sleeve is suitable for being detachably connected with the connector, and the other end of the inner sleeve is provided with the waterproof sealing ring abutting against the inner wall of the plug or the adapter. The waterproof optical fiber plug has good waterproof and sealing performances, provides an application scene of penetrating a pipe or a wall, is suitable for outdoor work, and has a simple structure and convenient assembly.
Description
Technical Field
The utility model belongs to the technical field of optical fiber connectors, and particularly relates to a waterproof optical fiber plug.
Background
The optical fiber connector is a device for detachably connecting optical fibers, and precisely connects two end surfaces of the optical fibers, so that the light energy output by the transmitting optical fiber can be coupled into the receiving optical fiber to the maximum extent, and the influence on a system caused by the intervention of the light energy into an optical link is minimized, which is the basic requirement of the optical fiber connector. To some extent, fiber optic connectors affect the reliability and various properties of the optical transmission system.
With the development of network technology, the application of the network is continuously upgraded, the application scene requirements of the optical fiber wiring products are diversified, and a plurality of optical fiber connectors are applied to the market at present, but the optical fiber connectors have waterproof functions, so that the application occasion is limited.
Disclosure of Invention
In response to the above-mentioned shortcomings or improvements of the prior art, the present utility model provides a waterproof optical fiber plug which is waterproof and has good sealing properties.
To achieve the above object, according to the present utility model, there is provided a waterproof optical fiber plug comprising:
the connector assembly comprises a core insert, a connector and a connector sealing ring, wherein a ceramic core insert is arranged at one end of the core insert, a tail sleeve is arranged at the other end of the core insert, the connector is arranged near the middle part of the core insert, and the connector sealing ring is arranged between the end of the core insert and the connector;
the waterproof assembly comprises an inner sleeve and a waterproof sealing ring, wherein the inner sleeve is provided with an inner cavity for accommodating the ceramic ferrule of the ferrule member, the inner wall of the inner sleeve is suitable for being abutted against the sealing ring of the connector, one end of the inner sleeve is suitable for being detachably connected with the connector, and the other end of the inner sleeve is provided with the waterproof sealing ring abutted against the inner wall of the plug or the adapter.
Preferably, the device further comprises a traction cylinder, wherein one end of the traction cylinder is provided with a through hole for facilitating pulling, and the other end of the traction cylinder is suitable for being detachably connected with the joint.
Preferably, one end of the inner sleeve is adapted for threaded connection with the coupling and/or the pulling cylinder.
Preferably, the waterproof optical fiber plug further comprises a plug, and at least one plug buckle is arranged at one end of the plug along the circumferential direction;
at least one clamping groove is formed near the middle of the outer wall of the inner sleeve along the whole body direction;
each clamping groove is correspondingly arranged with each plug buckle so as to limit the relative movement of the plug and the inner sleeve.
Preferably, the waterproof assembly further comprises an outer sleeve and at least one return spring;
the outer wall of the inner sleeve is provided with at least one first spring mounting groove along the whole body direction, the slotting direction of each first spring mounting groove is along the axial direction of the inner sleeve, and the first spring mounting groove is provided with a first blocking wall at one end far away from the waterproof sealing ring;
the inner wall of the outer sleeve is provided with at least one second spring mounting groove along the whole body direction, the slotting direction of each second spring mounting groove is along the axial direction of the outer sleeve, and each second spring mounting groove is provided with a second blocking wall at one end adjacent to the waterproof sealing ring;
the first spring mounting groove and the second spring mounting groove are correspondingly arranged, and the first blocking wall and the second blocking wall are oppositely arranged;
the outer sleeve is sleeved on the inner sleeve in a sliding manner;
each return spring is accommodated in a cavity formed by the corresponding first spring installation groove and the corresponding second spring installation groove, one end of the return spring is abutted against the first blocking wall of the first spring installation groove, and the other end of the return spring is abutted against the second blocking wall of the second spring installation groove.
Preferably, the outer wall of the inner sleeve is provided with at least one convex rib along the whole body direction, and each convex rib extends along the axial direction of the inner sleeve;
the inner wall of the outer sleeve is provided with at least one sliding groove along the whole body direction, and the slotting direction of each sliding groove is along the axial direction of the outer sleeve;
each sliding groove is arranged corresponding to each convex rib so as to enable the outer sleeve to be sleeved on the inner sleeve in a sliding manner.
Preferably, one end of the inner wall of the outer sleeve, which is opposite to the sliding groove, is provided with at least one outer sleeve buckle, and at least one positioning groove is arranged between the clamping groove and the convex rib of the outer wall of the inner sleeve;
each positioning groove is correspondingly arranged with each outer sleeve buckle so as to limit the outer sleeve to axially slide along the inner sleeve.
Preferably, the core insert is further provided with a shaft shoulder, and the shaft shoulder is located between the connector sealing ring and the connector.
Preferably, the connector assembly further comprises a limiting snap ring, and the limiting snap ring is mounted on one side, opposite to the shaft shoulder, of the core insert and centered on the connector.
Preferably, the core insert is provided with an axial limiting part, the axial limiting part comprises a first connector limiting plane, and the first connector limiting plane is perpendicular to the cross section of the core insert;
a limit stop is arranged in the inner sleeve and comprises a first waterproof piece limit plane which is perpendicular to the cross section of the inner sleeve;
the first waterproof piece limiting plane is arranged corresponding to the first connector limiting plane so as to prevent the core insert from rotating in the inner sleeve.
Preferably, the axial limiting part further comprises a second connector limiting plane, wherein the second connector limiting plane is parallel to the cross section of the core insert, protrudes out of the first connector limiting plane and is close to the position where the core insert is connected with the inner sleeve;
the limit stop further comprises a second waterproof piece limit plane which is parallel to the cross section of the inner sleeve, is not higher than the first waterproof piece limit plane and is close to the position where the inner sleeve is connected with the core insert;
the second waterproof piece limiting plane and the second connector limiting plane are correspondingly arranged to limit the displacement of the insert core piece inserted into the inner sleeve.
Preferably, the outer wall of the core insert is provided with a connector positioning part, the outer wall of the inner sleeve is provided with a waterproof piece positioning part, and the waterproof piece positioning part and the connector positioning part are correspondingly arranged so as to align the core insert and the inner sleeve.
In general, the above technical solutions conceived by the present utility model, compared with the prior art, enable the following beneficial effects to be obtained:
1) According to the waterproof optical fiber plug, the connector sealing ring in the connector assembly and the inner wall of the inner sleeve in the waterproof assembly are mutually extruded to form the seal at one end of the ceramic ferrule in the connector assembly; the waterproof sealing ring of the inner sleeve is abutted against the inner wall of the plug or the adapter to form the seal at the other end of the ceramic ferrule, and the sealing structures at the two ends of the ceramic ferrule jointly realize the waterproof function of the optical fiber plug.
2) According to the waterproof optical fiber plug, through the sealing formed by the traction barrel and the connector sealing ring in the connector assembly and the matching of the through hole on the traction barrel and an external pulling tool, pipe penetrating or wall penetrating work can be realized, and the construction efficiency is high.
3) According to the waterproof optical fiber plug, the assembly and separation operation of the plug and the waterproof assembly can be simplified through the detachable clamping structure between the plug buckle on the plug and the clamping groove of the inner sleeve in the waterproof assembly, so that the waterproof optical fiber plug is time-saving and convenient.
4) According to the waterproof optical fiber plug, the inner sleeve or the traction cylinder in the waterproof assembly is in threaded connection with the connector in the connector assembly, so that the structure is simple, and the waterproof optical fiber plug is safe and reliable.
Drawings
FIG. 1 is a schematic view of a waterproof fiber optic plug of the present utility model with an optical cable attached thereto;
FIG. 2 is a schematic view of a connector assembly of the waterproof optical fiber plug shown in FIG. 1, wherein the connector assembly is connected with an optical cable;
FIG. 3 is a schematic view of the ferrule assembly of the header assembly of FIG. 2;
FIG. 4 is an enlarged view of a portion of the ferrule of FIG. 2;
fig. 5 is a schematic view of the structure of the joint in the joint head assembly shown in fig. 2;
FIG. 6 is a schematic view of the waterproof assembly of the waterproof fiber optic plug of FIG. 1;
fig. 7 is an axial cross-sectional view of the flashing assembly of fig. 6;
FIG. 8 is a schematic view of the inner sleeve of the waterproof assembly of FIG. 6;
FIG. 9 is a schematic illustration of the inner sleeve of FIG. 8 in semi-section;
fig. 10 is a schematic view of the outer sleeve of the waterproof assembly of fig. 6;
FIG. 11 is a schematic view of the outer sleeve of FIG. 10 in semi-section;
fig. 12 is an assembly schematic view of a connector assembly and a waterproof assembly in the connector assembly of the waterproof optical fiber plug shown in fig. 1;
fig. 13 is an axial cross-sectional view of the header assembly of fig. 12 assembled with a waterproof assembly;
FIG. 14 is a schematic view of the structure of a plug in a waterproof fiber optic plug of the present utility model;
FIG. 15 is a schematic view of a waterproof fiber optic plug of the present utility model with the plug of FIG. 14 installed;
FIG. 16 is a schematic view of the structure of the pulling barrel in the waterproof fiber optic plug of the present utility model;
FIG. 17 is a schematic view of a waterproof fiber optic plug of the present utility model with the pulling barrel of FIG. 16 installed;
fig. 18 is an axial cross-sectional view of the watertight fiber optic plug shown in fig. 17 with a pulling barrel mounted thereto.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. In addition, the technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
Referring to fig. 1, the waterproof optical fiber plug of the present utility model includes a connector assembly 100 connected to an optical cable 700 and a waterproof assembly 200 detachably connected to the connector assembly 100.
Referring to fig. 2, the connector assembly 100 includes a ferrule 110, a connector 120, and a connector seal ring 130.
Referring to fig. 2 in combination with fig. 3, a ferrule 881 is mounted at one end E1 of the ferrule 110 and a boot 883 is mounted at the other end E2. The optical cable 700 is threaded into the boot 883 and is connected to the other end E2 of the ferrule 110 by crimping. In addition, in this embodiment, a ferrule mounting housing 882 may be mounted on the exterior of the ferrule 881.
With continued reference to fig. 2, the connector 120 is mounted near the middle of the ferrule 110 and a connector seal ring 130 is mounted on the ferrule 110 between the end of the ferrule 881 and the connector 120.
Referring to fig. 6 and 7, waterproof assembly 200 includes an inner sleeve 210 and a waterproof gasket 230.
The inner sleeve 210 has an inner cavity for receiving the ferrule 881 of the ferrule 110 of the header assembly 100, and the inner wall is adapted to abut against the header seal ring 130 of the header assembly 100. Referring to fig. 8 and 6, inner sleeve 210 is adapted to be removably connected to fitting 120 at one end and is fitted with a waterproof seal 230 on the outer wall of the other end that abuts the inner wall of the plug or adapter. The connector sealing ring 130 of the connector assembly 100 is adapted to abut against the inner wall of the inner sleeve 210 in the waterproof assembly 200 to form a seal at one end of the ceramic ferrule 881; the waterproof sealing ring 230 is suitable for abutting against the inner wall of the plug or the adapter to form a seal at the other end of the ceramic ferrule, and the sealing structures at the two ends of the ceramic ferrule jointly realize the waterproof function of the optical fiber plug.
Referring to fig. 2, the core insert 110 of the connector assembly 100 may further be provided with a shoulder 113, where the shoulder 113 is located between the connector seal ring 130 and the connector 120. Shoulder 113 may limit axial displacement of connector 120 in the direction of ferrule 881. In addition, the header assembly 100 may also include a snap ring 140. The stop collar 140 may be mounted on the ferrule 110 on a side of the ferrule opposite the shoulder 113 centered about the joint 120, i.e., the joint 120 is located between the shoulder 113 and the stop collar 140. The retaining collar 140 may limit axial displacement of the connector 120 in a direction opposite the ferrule 881.
Referring to fig. 3, the ferrule member 110 of the header assembly 100 may further be provided with an axial stopper 111b. Referring to fig. 4, the axial limiting portion 111b includes a first connector limiting plane 111b1, and the first connector limiting plane 111b1 is perpendicular to a cross section of the ferrule 110.
Referring to FIG. 9, the interior of inner sleeve 210 of waterproof assembly 200 may also be provided with a limit stop 217, limit stop 217 comprising a first waterproof limit plane 217a, first waterproof limit plane 217a being perpendicular to the cross-section of inner sleeve 210.
In the present utility model, the first waterproof member limit plane 217a of the limit stop 217 is disposed corresponding to the first connector limit plane 111b1 of the axial limit portion 111b, so that the rotation of the ferrule 110 in the inner sleeve 210 after the ferrule 110 of the connector assembly 100 is inserted into the inner sleeve 210 of the waterproof assembly 200 can be prevented.
In addition, referring to fig. 4, the axial limiting portion 111b of the connector assembly 100 may further include a second connector limiting plane 111b2, where the second connector limiting plane 111b2 is parallel to the cross section of the ferrule 110 and protrudes beyond the first connector limiting plane 111b1, and is adjacent to a position where the ferrule 110 is connected to the inner sleeve 210 of the waterproof assembly 200. Referring to fig. 9, the positive stop 217 of the flashing assembly 200 may further include a second flashing stop plane 217b, the second flashing stop plane 217b being parallel to the cross-section of the inner sleeve 210 and not higher than the first flashing stop plane 217a and adjacent to the location where the inner sleeve 210 is connected to the ferrule 110.
In the present utility model, the second waterproof member limit plane 217b of the limit stop 217 is disposed corresponding to the second connector limit plane 111b2 of the axial limit portion 111b to limit the displacement of the insert 110 into the inner sleeve 210.
In the present utility model, the first waterproof member limiting plane 217a has the same size as the first connector limiting plane 111b1, and the second waterproof member limiting plane 217b has the same size as the second connector limiting plane 111b 2.
Referring to fig. 3, the outer wall of the ferrule 110 of the header assembly 100 may further be provided with a header positioning portion 111a. Referring to fig. 8, the outer wall of inner sleeve 210 of waterproof assembly 200 is provided with waterproof positioning portion 218. In the present utility model, the waterproof positioning portion 218 of the inner sleeve 210 is disposed corresponding to the connector positioning portion 111a of the ferrule 110, so as to align the ferrule 110 and the inner sleeve 210 before the ferrule 110 of the connector assembly 100 is inserted into the inner sleeve 210 of the waterproof assembly 200, and to precisely perform the assembly operation of the two.
In the preferred embodiment of the present utility model, with continued reference to fig. 3, a positioning portion 111, a connector sealing ring mounting groove 112, a shaft shoulder 113, a connector mounting groove 114, and a snap ring mounting groove 115 are sequentially provided between one end E1 and the other end E2 of the ferrule 110 of the connector assembly 100.
Referring to fig. 3 and 4, a connector positioning portion 111a and an axial limiting portion 111b are provided on an outer wall of the positioning portion 111. The first connector limiting plane 111b1 of the axial limiting portion 111b is perpendicular to the second connector limiting plane 111b 2. The second connector limiting plane 111b2 is adjacent to the connector seal ring mounting groove 112.
Referring to fig. 2 and 3, the process of assembling the ferrule assembly 110, the joint 120, the first seal ring 130, and the retainer ring 140 into the header assembly 100 is as follows: the connector seal ring 130 is installed at the connector seal ring installation groove 112 of the ferrule 110, the connector 120 is installed at the connector installation groove 114 of the ferrule 110, and the limit snap ring 140 is installed at the snap ring installation groove 115 of the ferrule 110. At this time, the joint 120 is located between the shoulder 113 and the retainer ring 140.
Preferably, one end of inner sleeve 210 of waterproof assembly 200 is threaded with joint 120 of connector assembly 100. Referring to fig. 2 and 5, an anti-slip line 121 is provided at one end of the joint 120 of the joint assembly 100, which is close to the limit snap ring 140, so as to facilitate screwing the joint 120; an external thread 122 is provided on the end of the connector 120 adjacent to the shoulder 113. The external threads 122 of the adapter 120 have a larger diameter than the shoulder 113, facilitating the connection of the adapter 120 to other components via the external threads 122.
Referring to fig. 9, an inner wall of one end of the inner sleeve 210 of the waterproof assembly 200 is provided with an internal thread 211, and the internal thread 211 is provided corresponding to the external thread 122 of the joint 120 to achieve the screw-coupling of the inner sleeve 210 with the joint 120.
In a preferred embodiment of the present utility model, referring to fig. 8, the outer wall of the other end of the inner sleeve 210 is provided with a waterproof gasket mounting groove 212. Referring to fig. 6, the waterproof gasket 230 is installed at the waterproof gasket installation groove 212 of the inner sleeve 210.
Referring to fig. 8, the outer wall of the inner sleeve 210 may be further provided with at least one first spring mounting groove 213 in the circumferential direction, the grooved direction of each first spring mounting groove 213 being along the axial direction of the inner sleeve 210, the first spring mounting groove 213 having a first blocking wall 213a at an end remote from the waterproof sealing ring 230, the first blocking wall 213a being parallel to the cross section of the inner sleeve 210.
Referring to fig. 6 and 7, waterproof assembly 200 may further include outer sleeve 220 and return spring 240.
Referring to fig. 10, the inner wall of the outer sleeve 220 is provided with at least one second spring mounting groove 223 in the circumferential direction, the grooved direction of each second spring mounting groove 223 is along the axial direction of the outer sleeve 220, each second spring mounting groove 223 has a second blocking wall 223a at one end adjacent to the waterproof packing 230, and the second blocking wall 223a is parallel to the cross section of the outer sleeve 220.
Referring to fig. 6 to 11, the first spring mounting groove 213 of the inner sleeve 210 is disposed corresponding to the second spring mounting groove 223 of the outer sleeve 220, and the first blocking wall 213a of the first spring mounting groove 213 is disposed opposite to the second blocking wall 223a of the second spring mounting groove 223. The first spring mounting groove 213 and the second spring mounting groove 223 are adapted to cooperate with each other to form a cavity that receives the return spring 240. The first blocking wall 213a of the first spring mounting groove 213 is adapted to abut the return spring 240 in a direction away from the waterproof seal ring 230 in the axial direction of the inner sleeve 210 and block the return spring 240 from being ejected from one end thereof, and the second blocking wall 223a of the second spring mounting groove 223 is adapted to abut the return spring 240 in a direction adjacent to the waterproof seal ring 230 in the axial direction of the inner sleeve 210 and block the return spring 240 from being ejected from the other end thereof.
Referring to fig. 6, outer sleeve 220 is adapted to slidably fit over inner sleeve 210. In a preferred embodiment of the present utility model, referring to FIG. 8, the outer wall of inner sleeve 210 is provided with at least one rib 214 in the circumferential direction, each rib 214 extending in the axial direction of inner sleeve 210; referring to fig. 10, the inner wall of outer sleeve 220 is provided with at least one sliding groove 222 in the circumferential direction, and the grooving direction of each sliding groove 222 is along the axial direction of outer sleeve 220. Each sliding groove 222 is provided corresponding to each bead 214 to slidably socket outer sleeve 220 over inner sleeve 210.
Specifically, in this embodiment, referring to FIG. 8, ribs 214 are located at the end of inner sleeve 210 that is connected to ferrule 110. Referring to fig. 10 and 13, slide groove 222 is located in outer sleeve 220 at a position corresponding to ribs 214 of inner sleeve 210.
Referring to fig. 11, at least one outer sleeve buckle 221 is provided at one end of the inner wall of the outer sleeve 220 opposite to the sliding groove 222, and referring to fig. 8, at least one positioning groove 216 is provided between the clamping groove 215 and the rib 214 of the outer wall of the inner sleeve 210. Each detent 216 is disposed corresponding to each outer sleeve catch 221 to limit axial sliding movement of outer sleeve 220 along inner sleeve 210.
The positioning groove 216 has a first limiting wall 216a adjacent to the waterproof gasket mounting groove 212, and the first limiting wall 216a is parallel to the cross section of the inner sleeve 210.
Referring to fig. 6 and 7, the assembly of inner sleeve 210 and outer sleeve 220 into waterproof assembly 200 is as follows:
the return spring 240 is pre-positioned within the spring mounting groove 213 of the inner sleeve 210. The end of the sealing ring mounting groove 212 of the inner sleeve 210 is penetrated from the end of the sliding groove 222 of the outer sleeve 220, so that the sliding groove 222 of the outer sleeve 220 and the convex rib 214 of the inner sleeve 210 are mutually aligned during penetrating until the buckle 221 of the outer sleeve 220 is clamped into the positioning groove 216 through the clamping groove 215 of the inner sleeve 210, and at this time, the buckle 221 is mutually abutted against the first limiting wall 216a in the positioning groove 216 to prevent the outer sleeve 220 from falling out. After the installation, the second spring mounting groove 223 of the outer sleeve 220 and the first spring mounting groove 213 of the inner sleeve 210 form an upper and lower cavity, and collectively house the return spring 240. One end of the return spring 240 abuts against the first blocking wall 213a of the first spring mounting groove 213, and the other end abuts against the second blocking wall 223a of the second spring mounting groove 223.
The waterproof optical fiber plug capable of penetrating the pipe realizes a waterproof function through the mutual assembly of the connector assembly 100 and the waterproof assembly 200. The assembly process of the header assembly 100 and the waterproof assembly 200 is as follows:
in step S1, the connector positioning portion 111a of the ferrule 110 of the connector assembly 100 is aligned with the waterproof piece positioning portion 218 on the inner sleeve 210 of the waterproof assembly 200 (refer to fig. 12).
In step S2, the end of the ferrule 881 of the ferrule 110 is inserted into the inner sleeve 210. In the insertion process, the first connector limiting plane 111b1 of the axial limiting portion 111b of the ferrule 110 is attached to the first waterproof member limiting plane 217a of the limiting stop 217 in the inner sleeve 210, so that the two parts are limited, and the rotation of the ferrule 881 in the connector assembly 100 can be avoided. At this time, the connector sealing ring 130 of the connector assembly 100 abuts against the inner wall of the inner sleeve 210 and presses against each other to form a seal (refer to fig. 13).
In step S3, the joint 120 of the joint head assembly 100 is rotated so that the male screw 122 of the joint 120 and the female screw 211 of the inner sleeve 210 are locked to each other (refer to fig. 13). The first connector limiting plane 111b1 of the axial limiting portion 111b of the ferrule 110 is completely attached to the first waterproof member limiting plane 217a of the limiting stop 217 in the inner sleeve 210 by pushing with a screw thread, and the second connector limiting plane 111b2 of the axial limiting portion 111b is mutually limited to the second waterproof member limiting plane 217b of the limiting stop 217, so that the axial limiting effect is achieved.
In the above manner, the assembly of the connector assembly 100 and the waterproof assembly 200 is completed, and the optical fiber plug formed after the assembly can be connected to a desired device.
The connector assembly 100 and the waterproof assembly 200 in the waterproof optical fiber plug capable of penetrating the pipe are also detached and separated. The disassembly process of the header assembly 100 and the waterproof assembly 200 is as follows:
in step S1, the joint 120 of the joint head assembly 100 is screwed to disengage the external screw thread 122 of the joint 120 and the internal screw thread 211 of the inner sleeve 210 of the waterproof assembly 200 from each other.
Step S2, the ferrule 110 is pulled out of the inner sleeve 210 along the direction in which the connector positioning portion 111a of the ferrule 110 of the connector assembly 100 aligns with the waterproof member positioning portion 218 of the inner sleeve 210 of the waterproof assembly 200, so as to separate the inner sleeve 210 from the end of the ferrule 881 of the ferrule 110.
In the above manner, the disassembly of the header assembly 100 and the waterproof assembly 200 is completed, and after the disassembly is completed, the traction cylinder 400 may be mounted on the header assembly 100 (see below).
Referring to fig. 8, at least one catch 215 may also be provided around the middle of the outer wall of inner sleeve 210 of waterproof assembly 200. Referring to fig. 14, the waterproof fiber optic plug of the present utility model may further comprise a plug 300. At least one plug buckle 310 is disposed at one end of the plug 300 along the circumferential direction, and each plug buckle 310 is disposed corresponding to the slot 215 of the inner sleeve 210 to limit the relative movement between the plug 300 and the inner sleeve 210.
Preferably, all plug buckles 310 are uniformly distributed along the whole body so as to maintain the stability of the clamping connection. In the preferred embodiment of the present utility model, there are preferably three plug catches 310, and the three plug catches 310 are spaced apart by 120 °.
The assembly process of the waterproof assembly 200 and the plug 300 is as follows:
in step S1, the end of the plug 300 with the plug buckle 310 is sleeved on the end of the waterproof sealing ring 230 of the waterproof assembly 200 (refer to fig. 15). During the threading process, the plug buckle 310 is spread by the outer wall of the inner sleeve 210 of the waterproof assembly 200, the front end of the spread plug buckle 310 is propped against the end face of the outer sleeve 220, the outer sleeve 220 is pushed to move along the convex rib 214 of the inner sleeve 210 toward the end provided with the internal thread 211 of the inner sleeve 210, the second blocking wall 223a of the second spring mounting groove 223 of the outer sleeve 220 is further pushed to compress the return spring 240 toward the first blocking wall 213a of the first spring mounting groove 213 of the inner sleeve 210, at this time, the outer sleeve buckle 221 is separated from the first limiting wall 216a, and moves toward the end provided with the internal thread 211 of the inner sleeve 210 in the positioning groove 216 of the inner sleeve until the plug buckle 310 enters the clamping groove 215 of the outer wall of the inner sleeve 210. At this time, the plug buckle 310 is retracted, the outer diameter is reduced, and the end face of the outer sleeve 220 is no longer supported. The compressed return spring 240 partially bounces back, stretches toward the second blocking wall 223a of the second spring mounting groove 223 of the outer sleeve 220, and pushes the outer sleeve 220 to move along the ribs 214 toward one end of the waterproof gasket mounting groove 212 of the inner sleeve 210 until the outer sleeve buckle 221 inside the outer sleeve 220 abuts against the first limiting wall 216a of the outer wall of the inner sleeve 210, and the outer sleeve 220 is no longer moved. At this time, the plug buckle 310 of the plug 300 is locked with the clamping groove 215 on the outer wall of the inner sleeve 210, and the outer sleeve buckle 221 of the outer sleeve 220 is locked with the positioning groove 216 of the inner sleeve 210, so as to realize quick plugging and self-locking of the waterproof optical fiber plug and the plug 300.
The process of removing the waterproof assembly 200 from the plug 300 is as follows:
the external force pushes outer sleeve 220 along bead 214 toward one end of joint 120 while the external force pushes plug 300 toward the opposite end of joint 120 until plug catch 310 of plug 300 is exposed, at which time plug 300 is manually pulled out. At this time, the outer sleeve 220 is restored under the action of the restoring spring 240, and the buckle 221 is restored to a mutually abutting state with the first limiting wall 216a in the positioning groove 216.
Referring to fig. 16, the waterproof fiber optic plug of the present utility model may further comprise a pulling barrel 400. The traction cylinder 400 has a through hole 410 at one end for easy pulling and the other end adapted to be detachably coupled with the joint 120 of the joint head assembly 100. In a preferred embodiment of the present utility model, the other end of the traction cylinder 400 is provided with an internal thread 420, and the internal thread 420 is disposed corresponding to the external thread 122 of the joint 120, so as to realize the threaded connection of the traction cylinder 400 and the joint 120.
Referring to fig. 17, in a pipe penetration or wall penetration operation state, the process of assembling the traction drum 400 and the connector assembly 100 into a pipe penetration is as follows:
the internal threads 420 of the pull cup 400 are interlocked with the external threads 122 of the connector 120 of the connector assembly 100. At this time, the joint sealing ring 130 of the joint assembly 100 and the inner wall of the traction cylinder 400 are pressed against each other to form a seal (refer to fig. 18). The pulling tool is installed on the through hole 410 of the pulling cylinder 400, and the connector assembly 100 is pulled by the pulling tool, so that the pipe penetrating or wall penetrating work is completed.
In summary, with the waterproof optical fiber plug of the present utility model, the connector 120 of the connector assembly 100 is connected with the pulling cylinder 400 at the time of pipe penetration or wall penetration; in the waterproof working state, the traction cylinder 400 is disassembled, the joint 120 is connected with the inner sleeve 210 of the waterproof assembly 200, and the joint 120 is screwed; when the adapter is not required to be connected, the plug 300 is inserted, so that waterproof sealing and self-locking can be realized; when the adapter is required to be connected, the plug 300 is pulled out, and then the waterproof optical fiber plug is plugged into the adapter.
It will be readily appreciated by those skilled in the art that the foregoing is merely a preferred embodiment of the utility model and is not intended to limit the utility model, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.
Claims (12)
1. A waterproof fiber optic plug, comprising:
the connector assembly comprises a core insert, a connector and a connector sealing ring, wherein a ceramic core insert is arranged at one end of the core insert, a tail sleeve is arranged at the other end of the core insert, the connector is arranged near the middle part of the core insert, and the connector sealing ring is arranged between the end of the core insert and the connector;
the waterproof assembly comprises an inner sleeve and a waterproof sealing ring, wherein the inner sleeve is provided with an inner cavity for accommodating the ceramic ferrule of the ferrule member, the inner wall of the inner sleeve is suitable for being abutted against the sealing ring of the connector, one end of the inner sleeve is suitable for being detachably connected with the connector, and the other end of the inner sleeve is provided with the waterproof sealing ring abutted against the inner wall of the plug or the adapter.
2. The waterproof fiber optic plug according to claim 1, further comprising a pulling barrel having a through hole at one end for easy pulling and the other end adapted for detachable connection with the connector.
3. A watertight fiber optic plug as claimed in claim 2, characterized in that one end of the inner sleeve is adapted for threaded connection with the fitting and/or the pulling barrel.
4. The waterproof optical fiber plug according to claim 1, 2 or 3, further comprising the plug, wherein one end of the plug is provided with at least one plug buckle along the circumferential direction;
at least one clamping groove is formed near the middle of the outer wall of the inner sleeve along the whole body direction;
each clamping groove is correspondingly arranged with each plug buckle so as to limit the relative movement of the plug and the inner sleeve.
5. The waterproof fiber optic plug according to claim 4, wherein the waterproof assembly further comprises an outer sleeve and at least one return spring;
the outer wall of the inner sleeve is provided with at least one first spring mounting groove along the whole body direction, the slotting direction of each first spring mounting groove is along the axial direction of the inner sleeve, and the first spring mounting groove is provided with a first blocking wall at one end far away from the waterproof sealing ring;
the inner wall of the outer sleeve is provided with at least one second spring mounting groove along the whole body direction, the slotting direction of each second spring mounting groove is along the axial direction of the outer sleeve, and each second spring mounting groove is provided with a second blocking wall at one end adjacent to the waterproof sealing ring;
the first spring mounting groove and the second spring mounting groove are correspondingly arranged, and the first blocking wall and the second blocking wall are oppositely arranged;
the outer sleeve is sleeved on the inner sleeve in a sliding manner;
each return spring is accommodated in a cavity formed by the corresponding first spring installation groove and the corresponding second spring installation groove, one end of the return spring is abutted against the first blocking wall of the first spring installation groove, and the other end of the return spring is abutted against the second blocking wall of the second spring installation groove.
6. The waterproof optical fiber plug according to claim 5, wherein the outer wall of the inner sleeve is provided with at least one rib in the circumferential direction, each rib extending in the axial direction of the inner sleeve;
the inner wall of the outer sleeve is provided with at least one sliding groove along the whole body direction, and the slotting direction of each sliding groove is along the axial direction of the outer sleeve;
each sliding groove is arranged corresponding to each convex rib so as to enable the outer sleeve to be sleeved on the inner sleeve in a sliding manner.
7. The waterproof optical fiber plug according to claim 6, wherein one end of the inner wall of the outer sleeve opposite to the sliding groove is provided with at least one outer sleeve buckle, and at least one positioning groove is arranged between the clamping groove and the convex rib of the outer wall of the inner sleeve;
each positioning groove is correspondingly arranged with each outer sleeve buckle so as to limit the outer sleeve to axially slide along the inner sleeve.
8. The waterproof fiber optic plug according to claim 4, wherein the ferrule member is further provided with a shoulder located between the connector seal ring and the connector.
9. The waterproof fiber optic plug according to claim 8, wherein the connector assembly further comprises a retaining collar mounted on the ferrule member on a side of the ferrule member opposite the shoulder centered about the connector.
10. The waterproof optical fiber plug according to claim 4, wherein the ferrule is provided with an axial limiting portion, the axial limiting portion comprising a first connector limiting plane, the first connector limiting plane being perpendicular to a cross section of the ferrule;
a limit stop is arranged in the inner sleeve and comprises a first waterproof piece limit plane which is perpendicular to the cross section of the inner sleeve;
the first waterproof piece limiting plane is arranged corresponding to the first connector limiting plane so as to prevent the core insert from rotating in the inner sleeve.
11. The waterproof optical fiber plug according to claim 10, wherein the axial limiting portion further comprises a second connector limiting plane, the second connector limiting plane is parallel to the cross section of the ferrule, protrudes out of the first connector limiting plane, and is adjacent to a position where the ferrule is connected with the inner sleeve;
the limit stop further comprises a second waterproof piece limit plane which is parallel to the cross section of the inner sleeve, is not higher than the first waterproof piece limit plane and is close to the position where the inner sleeve is connected with the core insert;
the second waterproof piece limiting plane and the second connector limiting plane are correspondingly arranged to limit the displacement of the insert core piece inserted into the inner sleeve.
12. The waterproof optical fiber plug according to claim 4, wherein the outer wall of the ferrule is provided with a connector positioning portion, the outer wall of the inner sleeve is provided with a waterproof piece positioning portion, and the waterproof piece positioning portion and the connector positioning portion are correspondingly arranged to align the ferrule and the inner sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223459263.8U CN218896219U (en) | 2022-12-21 | 2022-12-21 | Waterproof optical fiber plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223459263.8U CN218896219U (en) | 2022-12-21 | 2022-12-21 | Waterproof optical fiber plug |
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| Publication Number | Publication Date |
|---|---|
| CN218896219U true CN218896219U (en) | 2023-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223459263.8U Active CN218896219U (en) | 2022-12-21 | 2022-12-21 | Waterproof optical fiber plug |
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| Country | Link |
|---|---|
| CN (1) | CN218896219U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116908967A (en) * | 2023-09-11 | 2023-10-20 | 无限光通讯(深圳)有限公司 | Waterproof optical fiber connector |
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2022
- 2022-12-21 CN CN202223459263.8U patent/CN218896219U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116908967A (en) * | 2023-09-11 | 2023-10-20 | 无限光通讯(深圳)有限公司 | Waterproof optical fiber connector |
| CN116908967B (en) * | 2023-09-11 | 2023-11-24 | 无限光通讯(深圳)有限公司 | Waterproof optical fiber connector |
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